Tools & Wizards About Us
coleccionarsellos.com screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

coleccionarsellos.com

Intercambio de Sellos de Colección | Compra/Venta Filatélia | ColeccionarSellos.com

Page Load Speed

5.4 sec in total

First Response

372 ms

Resources Loaded

4.7 sec

Page Rendered

250 ms

coleccionarsellos.com screenshot

About Website

Visit coleccionarsellos.com now to see the best up-to-date Coleccionar Sellos content for Spain and also check out these interesting facts you probably never knew about coleccionarsellos.com

Portal de filatélia dedicado al intercambio de sellos de colección entre coleccionistas. ¡Intercambia, compra y vende sellos totalmente gratis!.

Visit coleccionarsellos.com

Key Findings

We analyzed Coleccionarsellos.com page load time and found that the first response time was 372 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

coleccionarsellos.com performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value3,920 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value12.8 s

13/100

10%

Network Requests Diagram

coleccionarsellos.com

372 ms

www.coleccionarsellos.com

747 ms

web.js

100 ms

jquery-1.11.0.min.js

300 ms

jquery-ui-1.10.4.custom.min.js

409 ms

Our browser made a total of 154 requests to load all elements on the main page. We found that 50% of them (77 requests) were addressed to the original Coleccionarsellos.com, 13% (20 requests) were made to Static.xx.fbcdn.net and 6% (10 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Coleccionarsellos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 435.9 kB (29%)

Content Size

1.5 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Coleccionarsellos.com main page is 1.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 895.7 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 98.0 kB

  • Original 115.0 kB
  • After minification 97.7 kB
  • After compression 17.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 17.3 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 98.0 kB or 85% of the original size.

Image Optimization

-1%

Potential reduce by 8.9 kB

  • Original 895.7 kB
  • After minification 886.8 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Coleccionar Sellos images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 288.2 kB

  • Original 435.9 kB
  • After minification 414.6 kB
  • After compression 147.6 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 288.2 kB or 66% of the original size.

CSS Optimization

-80%

Potential reduce by 40.8 kB

  • Original 51.1 kB
  • After minification 45.1 kB
  • After compression 10.3 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Coleccionarsellos.com needs all CSS files to be minified and compressed as it can save up to 40.8 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 80 (53%)

Requests Now

150

After Optimization

70

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 150 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Coleccionar Sellos. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coleccionarsellos.com

coleccionarsellos.com

372 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

747 ms

web.js

web.js

100 ms

jquery-1.11.0.min.js

jquery-1.11.0.min.js

300 ms

jquery-ui-1.10.4.custom.min.js

jquery-ui-1.10.4.custom.min.js

409 ms

lightbox.min.js

lightbox.min.js

208 ms

jquery-ui-1.10.4.custom.css

jquery-ui-1.10.4.custom.css

205 ms

basico.css

basico.css

220 ms

comun.css

comun.css

221 ms

style.css

style.css

310 ms

lightbox.css

lightbox.css

311 ms

anythingslider.css

anythingslider.css

316 ms

portada.js

portada.js

316 ms

jquery.anythingslider.js

jquery.anythingslider.js

396 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

24 ms

show_ads.js

show_ads.js

23 ms

plusone.js

plusone.js

60 ms

dc.js

dc.js

64 ms

close.png

close.png

199 ms

loading.gif

loading.gif

198 ms

prev.png

prev.png

197 ms

next.png

next.png

197 ms

page-vbg.jpg

page-vbg.jpg

197 ms

hat.jpg

hat.jpg

198 ms

titulo.jpg

titulo.jpg

343 ms

icono-usuario.png

icono-usuario.png

273 ms

icono-fav.png

icono-fav.png

275 ms

icono-foros.png

icono-foros.png

275 ms

icono-contacto.png

icono-contacto.png

273 ms

icono-facebook.png

icono-facebook.png

275 ms

ca-pub-3413475035159271.js

ca-pub-3413475035159271.js

154 ms

zrt_lookup.html

zrt_lookup.html

192 ms

show_ads_impl.js

show_ads_impl.js

152 ms

leuchtturm1.gif

leuchtturm1.gif

311 ms

ads_foronum_sellos.php

ads_foronum_sellos.php

335 ms

reino_unido.gif

reino_unido.gif

333 ms

portugal.gif

portugal.gif

331 ms

francia.gif

francia.gif

334 ms

italia.gif

italia.gif

330 ms

alemania.gif

alemania.gif

332 ms

powered_by_google.gif

powered_by_google.gif

430 ms

menu_usuarios.png

menu_usuarios.png

429 ms

resultset_next.png

resultset_next.png

423 ms

menu_foronum.png

menu_foronum.png

429 ms

menu_foros.png

menu_foros.png

428 ms

menu_identificacion.png

menu_identificacion.png

428 ms

menu_info.png

menu_info.png

524 ms

menu_utiles.png

menu_utiles.png

519 ms

menu_gracias.png

menu_gracias.png

527 ms

all.js

all.js

179 ms

widgets.js

widgets.js

177 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

79 ms

slider1.jpg

slider1.jpg

1200 ms

slider2.jpg

slider2.jpg

1200 ms

slider3.jpg

slider3.jpg

1200 ms

slider4.jpg

slider4.jpg

1193 ms

comment.png

comment.png

589 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

598 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

739 ms

resultset_next_green.png

resultset_next_green.png

720 ms

help.png

help.png

1171 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1179 ms

__utm.gif

__utm.gif

91 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

62 ms

fastbutton

fastbutton

125 ms

ads

ads

208 ms

espana.gif

espana.gif

1044 ms

p_verde.gif

p_verde.gif

1044 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2245 ms

salvador.gif

salvador.gif

1153 ms

rumania.gif

rumania.gif

1154 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2157 ms

osd.js

osd.js

64 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

218 ms

postmessageRelay

postmessageRelay

93 ms

likebox.php

likebox.php

328 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

38 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

78 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2077 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1090 ms

boton_ver.gif

boton_ver.gif

1162 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1175 ms

ads

ads

284 ms

pJeswbKZO4XwVR0035gpgvesZW2xOQ-xsNqO47m55DA.ttf

pJeswbKZO4XwVR0035gpgvesZW2xOQ-xsNqO47m55DA.ttf

142 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1204 ms

355 ms

ads

ads

175 ms

xd_arbiter.php

xd_arbiter.php

105 ms

xd_arbiter.php

xd_arbiter.php

206 ms

ads

ads

253 ms

clasificador_traveler_stockbook_346657_b.jpg

clasificador_traveler_stockbook_346657_b.jpg

121 ms

surtido_filoestuches_tiras_leuchtturm_b.jpg

surtido_filoestuches_tiras_leuchtturm_b.jpg

201 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1258 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2239 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2260 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1361 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1489 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

87 ms

rpc:shindig_random.js

rpc:shindig_random.js

90 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1593 ms

ads

ads

215 ms

abg.js

abg.js

80 ms

ads

ads

194 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

22 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

1605 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2737 ms

www.coleccionarsellos.com

www.coleccionarsellos.com

2027 ms

mexico.gif

mexico.gif

2012 ms

noruega.gif

noruega.gif

2096 ms

belgica.gif

belgica.gif

2108 ms

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.es.html

tweet_button.b9740740e0bcf9b0657c5b11bd4388da.es.html

39 ms

chile.gif

chile.gif

2030 ms

colombia.gif

colombia.gif

2097 ms

usa.gif

usa.gif

2111 ms

kyEKgjk51ZE.css

kyEKgjk51ZE.css

106 ms

xgj7bXhJNEH.css

xgj7bXhJNEH.css

110 ms

kE_Z8j4XNUS.css

kE_Z8j4XNUS.css

135 ms

q68gy-v_YMF.js

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158 ms

FJmpeSpHpjS.js

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201 ms

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146 ms

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144 ms

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146 ms

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212 ms

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211 ms

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210 ms

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211 ms

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209 ms

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235 ms

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237 ms

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28 ms

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18 ms

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m_js_controller.js

23 ms

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44 ms

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22 ms

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34 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

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4 ms

default.png

default.png

2111 ms

jot

jot

129 ms

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642 ms

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434 ms

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790 ms

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696 ms

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713 ms

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714 ms

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22 ms

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36 ms

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15 ms

Accessibility Review

coleccionarsellos.com accessibility score

76

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

coleccionarsellos.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

coleccionarsellos.com SEO score

74

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coleccionarsellos.com can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Coleccionarsellos.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

coleccionarsellos.com

Open Graph description is not detected on the main page of Coleccionar Sellos. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: